e23156 Background: Standard thoracic oncology regimens in older adults may not reflect multidomain geriatric vulnerabilities or goals of care, increasing the risk of over- and undertreatment. We evaluated whether integrating comprehensive geriatric assessment (GA) and shared decision-making into a simultaneous geriatrics-oncology clinic within the tumor board (MTB) pathway modified initial MTB plans and had direct cost implications versus usual care. Methods: Cost analysis of prospectively documented treatment decisions in the first 100 consecutive patients aged ≥70 years evaluated in a thoracic oncogeriatrics clinic (Jan/24–Mar/25). The initial MTB strategy was compared with treatment after GA-informed re-evaluation; GA findings and patient goals were fed back to the MTB to revise recommendations. Hospital-perspective direct costs included drug acquisition (EUR/vial), administration, planned cycles, and non-pharmacologic planned costs linked to the strategy (diagnostic procedures, radiotherapy, surgery), using the period from treatment start to first clinical re-evaluation (3 months). Unit prices were obtained from hospital management sources; geriatrician personnel costs were included. Results: GA-informed re-evaluation modified the initial MTB plan in 59 of 100 patients (mean age 78.5 ± 5.0). Changes included omission of planned systemic therapy (22/59), dose reduction/intensity de-escalation (21/59), regimen or schedule adaptation/early reassessment (11/59), and local/diagnostic strategy change (14/59); categories were not mutually exclusive. Among omissions (n = 22), 16 (72.7%) were driven by frailty-related vulnerabilities identified through GA and 6 (27.3%) reflected watchful waiting aligned with patient preferences. Total direct cost reduction was 620,659 EUR and remained 603,289 EUR after accounting for geriatrician personnel costs. Conclusions: Early implementation of a simultaneous geriatrics-oncology clinic within the MTB pathway frequently altered initial plans, primarily reflecting objective geriatric vulnerabilities. These changes were associated with substantial reductions in direct healthcare costs as a secondary outcome, supporting age-integrated models that improve treatment appropriateness and value. Changes by frailty status. Frailty status Patients with decision change, n/N (%) Omission of systemic therapy, n/N (%) Dose reduction / intensity de-escalation, n/N (%) Regimen or schedule adaptation / early reassessment, n/N (%) Local or diagnostic strategy change, n/N (%) Fit 3/22 (13.6%) 0/3 (0.0%) 3/3 (100.0%) 0/3 (0.0%) 0/3 (0.0%) Pre-frail 27/41 (65.9%) 7/27 (25.9%) 12/27 (44.4%) 6/27 (22.2%) 3/27 (11.1%) Frail 22/30 (73.3%) 8/22 (36.4%) 6/22 (27.3%) 5/22 (22.7%) 11/22 (50.0%) Poor prognosis 7/7 (100.0%) 7/7 (100.0%) 0/7 (0.0%) 0/7 (0.0%) 0/7 (0.0%) Total 59/100 (59.0%) 22/59 (37.3%) 21/59 (35.6%) 11/59 (18.6%) 14/59 (23.7%)
Castelo-Loureiro et al. (Thu,) studied this question.
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